Home / 107,823.64-148,809.78-65,382.04

Finding the Fourth Proportional to 107,823.64, 148,809.78 and 65,382.04

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Solution

The fourth proportional to 107,823.64, 148,809.78 and 65,382.04 is: 90,235.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,823.64 : 148,809.78 = 65,382.04 : x
  2. Step 2: Convert to fraction form
    107,823.64/148,809.78 = 65,382.04/x
  3. Step 3: Cross multiply
    107,823.64x = 148,809.78 × 65,382.04
  4. Step 4: Simplify right side
    107,823.64x = 9,729,486,988.35
  5. Step 5: Solve for x
    x = 9,729,486,988.35/107,823.64
  6. Step 6: Final answer
    x = 90,235.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.